EP1606137B1 - Seat back recliner for vehicles - Google Patents
Seat back recliner for vehicles Download PDFInfo
- Publication number
- EP1606137B1 EP1606137B1 EP04714141A EP04714141A EP1606137B1 EP 1606137 B1 EP1606137 B1 EP 1606137B1 EP 04714141 A EP04714141 A EP 04714141A EP 04714141 A EP04714141 A EP 04714141A EP 1606137 B1 EP1606137 B1 EP 1606137B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking pawl
- bracket
- pivotal
- catch
- seat back
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000000903 blocking effect Effects 0.000 claims description 20
- 238000010276 construction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
- B60N2/206—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access to a position in which it can be used as a support for objects, e.g. as a tray
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
- B60N2/2352—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with external pawls
Definitions
- This invention relates to a seat back recliner for positioning a seat back of a vehicle seat in an upwardly extending position and for selectively permitting forward pivoting of the seat back.
- Vehicle seats have previously included recliners that provide positioning of a seat back on a seat cushion in an upwardly extending position while permitting forward pivoting thereof.
- Such forward pivoting is useful in different applications, such as when the seat back pivots forwardly so that its back side faces upwardly and provides a cargo floor or when the seat is a front seat that pivots forwardly to permit access to a rear seat in a two-door vehicle.
- DE 3611929 also describes a locking device for forward folding backs of seats. It includes a locking pawl secured in a disengaged position to prevent it being unintentionally blocked owing to loading of the seat cushion in the forward pivoted state. It corresponds to the preamble of claim 1.
- An object of the present invention is to provide an improved vehicle seat back recliner.
- the vehicle seat back recliner of the invention shows the features of claim 1.
- the vehicle seat back recliner has the stationary pawl constructed to include a pair of spaced bracket portions between which the pivotal bracket, the locking pawl, the control cam and the catch are mounted. More specifically, the locking pawl, the control cam and the catch are pivotally mounted between the spaced bracket portions of the stationary bracket.
- the pivotal bracket of the recliner is constructed to include a plurality of teeth and the locking pawl includes a plurality of locking teeth that are engaged with the teeth of the pivotal bracket at different locations in the locked position to angularly position the pivotal bracket.
- a pivotal connection pivotally supports the locking pawl on the stationary bracket for pivotal movement between its locked and unlocked positions.
- the construction of the locking pawl includes a blocking portion and a release arm.
- a pivotal connection pivotally supports the control cam on the stationary bracket for movement between its blocking and released positions.
- the first mentioned spring pivotally biases the control cam toward its blocking position into engagement with the blocking portion of the locking pawl.
- a release connection of the recliner selectively pivots the control cam to its released position against its spring bias into engagement with the release arm of the locking pawl to move the locking pawl from its locked position to its unlocked position.
- the locking pawl also includes at least one latching tooth.
- a pivotal connection pivotally mounts the catch on the stationary bracket for movement between its latched and released positions.
- the catch includes a latch arm having a latching tooth for engaging the latching tooth of the locking pawl in the latched position of the catch to hold the locking pawl in the unlocked position.
- the catch also includes a biasing arm that extends from the pivotal connection of the catch in the opposite direction as the latch arm.
- the second spring engages the biasing arm of the catch to pivotally bias the catch toward its latched position
- the pivotal bracket upon pivoting to the upright seat back position engages the latch arm of the catch to pivot the catch so its latching tooth disengages the latching tooth of the locking pawl to permit the control cam to pivot under the impetus of its spring bias to the blocking position and thereby hold the locking pawl in its locked position.
- the locking pawl includes a pair of latching teeth that are engaged by the latching tooth on the latch arm of the catch.
- a vehicle generally indicated by 10 is illustrated with front and rear side doors partially broken away so as to expose front and rear seats 12 and 14, respectively, mounted on the vehicle floor 16 in any conventional manner.
- the front seat 12 includes a recliner 18 for angularly positioning a seat back 20 of the front seat on a seat cushion 22 of the front seat.
- the rear seat 14 includes a hidden line indicated recliner 24 that is constructed in accordance with the present invention to position a seat back 26 of the rear seat on its associated seat cushion 28.
- the recliner 24 is operable to position the seat back 26 in different angular upright positions and to also permit forward pivoting of the seat back downwardly to a horizontal position where its upwardly facing back side provides a cargo floor that cooperates with the cargo floor to the rear of the rear seat to a cargo compartment.
- recliner 24 can also be utilized with the front seat of a two door vehicle to permit forward seat back pivoting that facilities access to the rear seat.
- any type of conventional release handle 30 is mounted on the rear seat back 26, preferably at its upper end, and is connected to the upper end of a release cable 32.
- a lower end of release cable 32 is connected to the recliner 24 as is hereinafter more fully described to provide release actuation that unlocks the recliner to permit the pivoting of the seat back.
- the recliner 24 includes a stationary bracket 34 for mounting on the vehicle seat cushion to an unshown frame thereof by suitable fasteners that extend through connection holes 36.
- This stationary bracket 34 includes a pair of spaced bracket portions 38 between which most of the components of the recliner are mounted as is hereinafter more fully described.
- the spaced bracket portions 38 are made from steel with stamped formations 40 including ribs, depressions, etc. that provide strengthening of the stationary bracket.
- Connections 42, pivotal connections that support components of the recliner as are hereinafter more fully described, and bushings that define the connection holes 36 all cooperate to provide the spaced relationship of the bracket portions 34 from each other so that the recliner components can be mounted therebetween for locking and release of the recliner as is hereinafter more fully described.
- the recliner 24 also includes a pivotal bracket 44 that is mounted by a pivotal connection 46 on the upper end of the stationary bracket 34 for pivotal movement about a pivotal axis A.
- This pivotal bracket 44 provides mounting of the associated vehicle seat cushion by unshown connectors that extend through connection holes 48 and attach to an unshown frame of the seat back.
- This pivotal bracket 44 is located between the spaced bracket portions 38 of the stationary bracket 34 for its pivotal movement which moves the seat back between the different upwardly inclined positions and the forward horizontal cargo position previously described in connection with Figure 1 .
- the recliner 24 includes a lock mechanism 50 having a locking pawl 52 mounted on the stationary bracket 34 between its spaced bracket portions 38 for movement between a locked position shown in Figures 3 and 5 and a released position shown in Figure 6 .
- the locking pawl 52 engages the pivotal bracket 44 to lock the pivotal bracket against pivotal movement on the stationary bracket 34 with the seat back supported by the pivotal bracket extending generally upright position as previously described in connection with Figure 1 .
- the locking pawl 52 is disengaged from the pivotal bracket 44 to permit pivoting thereof on the stationary bracket 34 such that the seat back is pivotable with respect to the seat cushion.
- the recliner 24 also includes a control cam 54 mounted on the stationary bracket 34 between its spaced bracket portions 38 for movement between a blocking position with respect to the locking pawl 52 as shown in Figures 3 and 5 and a released position with respect to the locking pawl as shown in Figure 6 .
- the control cam 54 engages and holds the locking pawl 52 in its locked position in engagement with the pivotal bracket 44 to prevent seat back pivoting.
- the control cam 54 is movable to the released position shown in Figure 6 to move the locking pawl 52 to its unlocked position out of engagement with the pivotal bracket 44 in order to permit seat back pivoting between the different positions as previously described.
- the recliner 24 also includes a catch 56 mounted on the stationary bracket 34 between its spaced bracket portions 38 for movement between a latched position with respect to the locking pawl 52 as shown in Figure 6 and released position with respect to the locking pawl as shown in Figures 3 and 5 .
- the catch 56 engages the locking pawl to hold the locking pawl against movement to its locked position.
- pivotal bracket 44 Upon pivoting of the pivotal bracket 44 on the stationary bracket 34 as the seat back pivots rearwardly to its upright position, the pivotal bracket engages the catch 56 as shown in Figure 5 and moves the catch to its released position out of engagement with the locking pawl 52 so the locking pawl can move to its locked position in engagement with the pivotal bracket 34 to prevent further pivotal movement so the seat back is then held in its upright position.
- the stationary bracket 34 includes the pair of spaced bracket portions 38 between which the pivotal bracket 44, the locking pawl 52, the control cam 54 and the catch 56 are mounted for movement as previously described.
- the pivotal bracket 44 as previously mentioned is mounted for pivotal movement by its pivotal connection 46.
- the locking pawl 52 is mounted for pivotal movement between its locked and unlocked positions by a pivotal connection 58.
- the control cam 54 is mounted by a pivotal connection 60 for pivotal movement between its blocking position shown in Figures 3 and 5 and its released position shown in Figure 6
- the catch 56 is mounted by a pivotal connection 62 for pivotal movement between its latched position shown in Figure 6 and its unlatched position in Figures 3 and 5 .
- the recliner 24 includes a first spring 64 that biases the control cam 54 toward its blocking position of Figures 3 and 5 .
- This first spring is of the spiral type and is mounted on the outwardly facing side of one of the spaced bracket portions 38 as shown in Figure 2 . More specifically, this spiral spring has an outer end 64 that is hooked to a connector flange 68 of the adjacent bracket portion 38 and has an inner end 70 connected to the pivotal connection 60 of the control cam 54 so as to bias the control cam toward its blocking position illustrated in Figures 3 and 5 .
- the recliner 24 also includes a second spring 72 that is located between the spaced bracket portions 38 of the stationary bracket 34 and biases the catch 56 toward its latched position shown in Figure 6 in latching engagement with the locking pawl 52 as previously described. More specifically, the spring 72 extends around the bushing that defines one of the connection holes 36 and has a first arm 74 engaged with the catch 56 and a second arm 76 engaged with the bushing that defines the other connection hole 36 so as to provide the clockwise bias of the catch.
- the pivotal bracket 44 includes a plurality of teeth 78 extending arcuately about the pivotal axis A and the locking pawl 52 includes a plurality of locking teeth 80 extending arcuately and engagable with the pivotal bracket teeth 78 at different locations. More specifically, the locking pawl locking teeth 80 engage the pivotal bracket teeth 78 in the position of Figure 5 to hold the seat back in its solid line intermediate upright position of Figure 1 .
- the pivotal bracket 44 is positioned by the locking pawl 52 so that the seat back is in its most rearwardly inclined upright position shown in Figure 1 .
- the locked position of Figure 9 shows the pivotal bracket 44 locked by the locking pawl 52 so the seat back is in its most forward upright position shown by phantom line representation in Figure 1 .
- the locking pawl 52 includes a blocking portion 82 that is engaged by the control cam 54 in its blocking position to hold the locking pawl in its locked position, and the locking pawl 52 also includes a release arm 84 which the control cam 54 engages upon movement against its spring bias to move the locking pawl to its released position.
- This movement of the control cam is provided by a release connection 86 to the release cable 32 as shown in Figure 4 . More specifically, this release connection 86 is located on the outwardly facing side of the spaced bracket portion 38 on the opposite side of the recliner from the spiral spring 70 shown in Figure 2 for biasing the control cam pivotal connection 60 as previously described.
- this release connection 86 shown in Figure 4 includes a lever arm 88 having an inner end fixed to the control cam pivotal connection 60 and having an outer end secured to a control wire 90 of the release cable 32 whose sheath 92 is fixed to a bracket flange 94.
- operation of the release cable 32 pivots the lever 88 so the pivotal connection 60 rotates against the bias of the spiral spring 64 shown in Figure 2 to provide the control cam pivoting in a clockwise direction from the blocking position of Figure 5 to the released position of Figure 6 .
- Locking pawl 52 as shown in Figures 5 and 6 includes a pair of latching teeth 96 and the catch 56 has a latch arm 98 including a latching tooth 100 for engaging either of the latching teeth 96 on the locking pawl 92 such as shown in Figure 6 .
- the catch 56 also includes a biasing arm 102 that extends in the opposite direction from the pivotal connection 62 as the latch arm 98 and is engaged by the arm 74 of spring 72 to provide the clockwise bias of the catch.
Abstract
Description
- This invention relates to a seat back recliner for positioning a seat back of a vehicle seat in an upwardly extending position and for selectively permitting forward pivoting of the seat back.
- Vehicle seats have previously included recliners that provide positioning of a seat back on a seat cushion in an upwardly extending position while permitting forward pivoting thereof. Such forward pivoting is useful in different applications, such as when the seat back pivots forwardly so that its back side faces upwardly and provides a cargo floor or when the seat is a front seat that pivots forwardly to permit access to a rear seat in a two-door vehicle.
- Prior art patents noted during an investigation conducted in connection with the present invention include: United States Patents:
3,736,026 Ziegler et al. ;5,154,476 Haider et al. ;5,690,386, Chabanne ;5,718,481 Robinson ; and6,454,355 Biletskiy ; and United States Patent Application Publication No.US 2002/0135216 A1 Hamelin et al . - Furthermore
DE 3611929 also describes a locking device for forward folding backs of seats. It includes a locking pawl secured in a disengaged position to prevent it being unintentionally blocked owing to loading of the seat cushion in the forward pivoted state. It corresponds to the preamble of claim 1. - An object of the present invention is to provide an improved vehicle seat back recliner.
- In carrying out the above object, the vehicle seat back recliner of the invention shows the features of claim 1.
- The vehicle seat back recliner has the stationary pawl constructed to include a pair of spaced bracket portions between which the pivotal bracket, the locking pawl, the control cam and the catch are mounted. More specifically, the locking pawl, the control cam and the catch are pivotally mounted between the spaced bracket portions of the stationary bracket.
- The pivotal bracket of the recliner is constructed to include a plurality of teeth and the locking pawl includes a plurality of locking teeth that are engaged with the teeth of the pivotal bracket at different locations in the locked position to angularly position the pivotal bracket. A pivotal connection pivotally supports the locking pawl on the stationary bracket for pivotal movement between its locked and unlocked positions.
- The construction of the locking pawl includes a blocking portion and a release arm. A pivotal connection pivotally supports the control cam on the stationary bracket for movement between its blocking and released positions. The first mentioned spring pivotally biases the control cam toward its blocking position into engagement with the blocking portion of the locking pawl. A release connection of the recliner selectively pivots the control cam to its released position against its spring bias into engagement with the release arm of the locking pawl to move the locking pawl from its locked position to its unlocked position.
- The locking pawl also includes at least one latching tooth. A pivotal connection pivotally mounts the catch on the stationary bracket for movement between its latched and released positions. The catch includes a latch arm having a latching tooth for engaging the latching tooth of the locking pawl in the latched position of the catch to hold the locking pawl in the unlocked position. The catch also includes a biasing arm that extends from the pivotal connection of the catch in the opposite direction as the latch arm. The second spring engages the biasing arm of the catch to pivotally bias the catch toward its latched position, and the pivotal bracket upon pivoting to the upright seat back position engages the latch arm of the catch to pivot the catch so its latching tooth disengages the latching tooth of the locking pawl to permit the control cam to pivot under the impetus of its spring bias to the blocking position and thereby hold the locking pawl in its locked position.
- In its disclosed construction, the locking pawl includes a pair of latching teeth that are engaged by the latching tooth on the latch arm of the catch.
- The objects, features and advantages of the present invention are readily apparent from the following detailed description of the preferred embodiment when taken in connection with the accompanying drawings.
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FIGURE 1 is a side elevational view of a vehicle with front and rear doors broken away to illustrate the vehicle seating which includes a rear seat having a seat back recliner constructed in accordance with the present invention. -
FIGURE 2 is a perspective view of the seat back recliner of the invention taken generally from one side of the recliner. -
FIGURE 3 is a side elevational view of the recliner taken generally from the same side asFigure 2 but with one bracket portion of a stationary bracket removed to illustrate the manner in which a seat back pivotal bracket is supported and positioned by the recliner components. -
FIGURE 4 is a perspective view of the recliner similar toFigure 2 but taken from the opposite side thereof to further illustrate its construction. -
FIGURE 5 is a schematic view illustrating the recliner components when positioned to hold the rear seat back in its solid line indicated upright sealing position ofFigure 1 . -
FIGURE 6 is a schematic view of the recliner similar toFigure 5 but showing a released condition where the seat back pivotal bracket thereof is released to pivot forwardly. -
FIGURE 7 is a view similar toFigure 6 after the seat back has pivoted forwardly to a horizontal cargo floor position as shown by phantom line representation inFigure 1 . -
FIGURE 8 is a schematic view similar toFigure 5 but showing the recliner with its pivotal bracket locked so as to hold the seat back in its most rearwardly inclined position which is shown by phantom line representation inFigure 1 . -
FIGURE 9 is a schematic view similar toFigure 8 but showing the recliner locked so its pivotal bracket positions the seat back in the farthest forward upright seating position shown by phantom line representation inFigure 1 . - With reference to
Figure 1 , a vehicle generally indicated by 10 is illustrated with front and rear side doors partially broken away so as to expose front andrear seats vehicle floor 16 in any conventional manner. Thefront seat 12 includes a recliner 18 for angularly positioning a seat back 20 of the front seat on aseat cushion 22 of the front seat. Therear seat 14 includes a hidden line indicatedrecliner 24 that is constructed in accordance with the present invention to position aseat back 26 of the rear seat on its associatedseat cushion 28. As is hereinafter more fully described, therecliner 24 is operable to position the seat back 26 in different angular upright positions and to also permit forward pivoting of the seat back downwardly to a horizontal position where its upwardly facing back side provides a cargo floor that cooperates with the cargo floor to the rear of the rear seat to a cargo compartment. - It should be appreciated that the
recliner 24 can also be utilized with the front seat of a two door vehicle to permit forward seat back pivoting that facilities access to the rear seat. - With continuing reference to
Figure 1 , any type ofconventional release handle 30 is mounted on therear seat back 26, preferably at its upper end, and is connected to the upper end of arelease cable 32. A lower end ofrelease cable 32 is connected to therecliner 24 as is hereinafter more fully described to provide release actuation that unlocks the recliner to permit the pivoting of the seat back. - With reference to
Figures 2-4 , therecliner 24 includes astationary bracket 34 for mounting on the vehicle seat cushion to an unshown frame thereof by suitable fasteners that extend throughconnection holes 36. Thisstationary bracket 34 includes a pair of spacedbracket portions 38 between which most of the components of the recliner are mounted as is hereinafter more fully described. The spacedbracket portions 38 are made from steel with stampedformations 40 including ribs, depressions, etc. that provide strengthening of the stationary bracket.Connections 42, pivotal connections that support components of the recliner as are hereinafter more fully described, and bushings that define theconnection holes 36 all cooperate to provide the spaced relationship of thebracket portions 34 from each other so that the recliner components can be mounted therebetween for locking and release of the recliner as is hereinafter more fully described. - With continuing reference to
Figures 2-4 , therecliner 24 also includes apivotal bracket 44 that is mounted by apivotal connection 46 on the upper end of thestationary bracket 34 for pivotal movement about a pivotal axis A. Thispivotal bracket 44 provides mounting of the associated vehicle seat cushion by unshown connectors that extend throughconnection holes 48 and attach to an unshown frame of the seat back. Thispivotal bracket 44 is located between the spacedbracket portions 38 of thestationary bracket 34 for its pivotal movement which moves the seat back between the different upwardly inclined positions and the forward horizontal cargo position previously described in connection withFigure 1 . - As best illustrated in
Figures 3 ,5 and 6 , therecliner 24 includes alock mechanism 50 having alocking pawl 52 mounted on thestationary bracket 34 between its spacedbracket portions 38 for movement between a locked position shown inFigures 3 and5 and a released position shown inFigure 6 . In the locked position shown inFigures 3 and5 , thelocking pawl 52 engages thepivotal bracket 44 to lock the pivotal bracket against pivotal movement on thestationary bracket 34 with the seat back supported by the pivotal bracket extending generally upright position as previously described in connection withFigure 1 . In the released position shown inFigure 6 , thelocking pawl 52 is disengaged from thepivotal bracket 44 to permit pivoting thereof on thestationary bracket 34 such that the seat back is pivotable with respect to the seat cushion. - As illustrated by continuing reference to
Figures 3 ,5 and 6 , therecliner 24 also includes acontrol cam 54 mounted on thestationary bracket 34 between its spacedbracket portions 38 for movement between a blocking position with respect to thelocking pawl 52 as shown inFigures 3 and5 and a released position with respect to the locking pawl as shown inFigure 6 . In the blocking position shown inFigures 3 and5 , thecontrol cam 54 engages and holds thelocking pawl 52 in its locked position in engagement with thepivotal bracket 44 to prevent seat back pivoting. Thecontrol cam 54 is movable to the released position shown inFigure 6 to move thelocking pawl 52 to its unlocked position out of engagement with thepivotal bracket 44 in order to permit seat back pivoting between the different positions as previously described. - As illustrated by further reference to
Figures 3 ,5 and 6 , therecliner 24 also includes acatch 56 mounted on thestationary bracket 34 between its spacedbracket portions 38 for movement between a latched position with respect to thelocking pawl 52 as shown inFigure 6 and released position with respect to the locking pawl as shown inFigures 3 and5 . Upon movement of thecontrol cam 54 to move thelocking pawl 52 to the unlocked position ofFigure 6 , thecatch 56 engages the locking pawl to hold the locking pawl against movement to its locked position. Upon pivoting of thepivotal bracket 44 on thestationary bracket 34 as the seat back pivots rearwardly to its upright position, the pivotal bracket engages thecatch 56 as shown inFigure 5 and moves the catch to its released position out of engagement with thelocking pawl 52 so the locking pawl can move to its locked position in engagement with thepivotal bracket 34 to prevent further pivotal movement so the seat back is then held in its upright position. - As previously mentioned, the
stationary bracket 34 includes the pair of spacedbracket portions 38 between which thepivotal bracket 44, thelocking pawl 52, thecontrol cam 54 and thecatch 56 are mounted for movement as previously described. Thepivotal bracket 44 as previously mentioned is mounted for pivotal movement by itspivotal connection 46. Likewise, the lockingpawl 52 is mounted for pivotal movement between its locked and unlocked positions by apivotal connection 58. Similarly, thecontrol cam 54 is mounted by apivotal connection 60 for pivotal movement between its blocking position shown inFigures 3 and5 and its released position shown inFigure 6 , and thecatch 56 is mounted by apivotal connection 62 for pivotal movement between its latched position shown inFigure 6 and its unlatched position inFigures 3 and5 . - As shown in
Figures 2 and 3 , therecliner 24 includes afirst spring 64 that biases thecontrol cam 54 toward its blocking position ofFigures 3 and5 . This first spring is of the spiral type and is mounted on the outwardly facing side of one of the spacedbracket portions 38 as shown inFigure 2 . More specifically, this spiral spring has anouter end 64 that is hooked to aconnector flange 68 of theadjacent bracket portion 38 and has aninner end 70 connected to thepivotal connection 60 of thecontrol cam 54 so as to bias the control cam toward its blocking position illustrated inFigures 3 and5 . - The
recliner 24 also includes asecond spring 72 that is located between the spacedbracket portions 38 of thestationary bracket 34 and biases thecatch 56 toward its latched position shown inFigure 6 in latching engagement with the lockingpawl 52 as previously described. More specifically, thespring 72 extends around the bushing that defines one of the connection holes 36 and has afirst arm 74 engaged with thecatch 56 and asecond arm 76 engaged with the bushing that defines theother connection hole 36 so as to provide the clockwise bias of the catch. - As shown in
Figure 3 , thepivotal bracket 44 includes a plurality ofteeth 78 extending arcuately about the pivotal axis A and the lockingpawl 52 includes a plurality of lockingteeth 80 extending arcuately and engagable with thepivotal bracket teeth 78 at different locations. More specifically, the lockingpawl locking teeth 80 engage thepivotal bracket teeth 78 in the position ofFigure 5 to hold the seat back in its solid line intermediate upright position ofFigure 1 . In the locked condition ofFigure 8 , thepivotal bracket 44 is positioned by the lockingpawl 52 so that the seat back is in its most rearwardly inclined upright position shown inFigure 1 . Similarly, the locked position ofFigure 9 shows thepivotal bracket 44 locked by the lockingpawl 52 so the seat back is in its most forward upright position shown by phantom line representation inFigure 1 . - As shown in
Figures 5 and 6 , the lockingpawl 52 includes a blockingportion 82 that is engaged by thecontrol cam 54 in its blocking position to hold the locking pawl in its locked position, and the lockingpawl 52 also includes arelease arm 84 which thecontrol cam 54 engages upon movement against its spring bias to move the locking pawl to its released position. This movement of the control cam is provided by arelease connection 86 to therelease cable 32 as shown inFigure 4 . More specifically, thisrelease connection 86 is located on the outwardly facing side of the spacedbracket portion 38 on the opposite side of the recliner from thespiral spring 70 shown inFigure 2 for biasing the control campivotal connection 60 as previously described. More specifically, thisrelease connection 86 shown inFigure 4 includes alever arm 88 having an inner end fixed to the control campivotal connection 60 and having an outer end secured to acontrol wire 90 of therelease cable 32 whosesheath 92 is fixed to abracket flange 94. Thus, operation of therelease cable 32 pivots thelever 88 so thepivotal connection 60 rotates against the bias of thespiral spring 64 shown inFigure 2 to provide the control cam pivoting in a clockwise direction from the blocking position ofFigure 5 to the released position ofFigure 6 . - Locking
pawl 52 as shown inFigures 5 and 6 includes a pair of latchingteeth 96 and thecatch 56 has alatch arm 98 including a latchingtooth 100 for engaging either of the latchingteeth 96 on the lockingpawl 92 such as shown inFigure 6 . Thecatch 56 also includes abiasing arm 102 that extends in the opposite direction from thepivotal connection 62 as thelatch arm 98 and is engaged by thearm 74 ofspring 72 to provide the clockwise bias of the catch. - When the seat back is in the horizontal cargo position as illustrated by
Figure 7 , movement back to the upright position pivots thepivotal bracket 44 clockwise through the position ofFigure 6 to the position illustrated in eitherFigures 5 ,8 or 9 whereupon engagement of the pivotal bracket with thelatch arm 98 ofcatch 56 moves the catch counterclockwise against its spring bias by thespring arm 74 to disengage the locking pawl and catch latchingteeth pawl 52 to its locked position with thecontrol cam 54 then moving to its blocking position under its spring bias to provide the recliner locking. - While the preferred embodiment for carrying out the invention has been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the invention as defined by the following claims.
Claims (7)
- A vehicle seat back recliner (24), comprising:a stationary bracket (34) for mounting on a seat cushion of a vehicle seat with which the recliner (24) is to be used;a pivotal bracket (44) that is mounted for pivotal movement about a pivotal axis on the stationary bracket (34) and that is adapted to mount a seat back of the vehicle seat;a lock mechanism (50) having a locking pawl (52) mounted on the stationary bracket (34) for movement between locked and unlocked positions with respect to the pivotal bracket (44), the locking pawl (52) engaging the pivotal bracket (44) in the locked position to lock the pivotal bracket (44) against pivotal movement on the stationary bracket (34) with the seat back supported by the pivotal bracket (44) extending in a generally upright position, and the locking pawl (52) being disengaged from the pivotal bracket (44) in the unlocked position to permit pivoting thereof on the stationary bracket (34) such that the seat back is pivotable with respect to the seat cushion;a control cam (54) mounted on the stationary bracket (34) for movement between blocking and released positions with respect to the locking pawl (52), the control cam (54) engaging the locking pawl (52) in its blocking position to hold the locking pawl (52) in its locked position, and the control cam (54) being movable to the released position to move the locking pawl (52) to its unlocked position; anda catch (56) mounted on the stationary bracket (34) for movement between latched and released position with respect to the locking pawl (52);characterised in that :a first spring (64) provides the sole biasing of the control cam (54) and this biasing is in a direction toward the blocking position of the control cam,a second spring (72) biases the catch (56) toward its latched position with respect to the locking pawl (52) so the catch engagesthe locking pawl (52) upon movement thereof to the unlocked position by the control cam (54) to hold the locking pawl (52) against movement to the locked position, and the pivotal bracket (44) upon pivoting on the stationary bracket (34) as the seat back pivots rearwardly to its upright position engaging an moving the catch (56) against the bias of the second spring (72) to its released position out of engagement with the locking pawl so the locking pawl can move to its locked position in engagement with the pivotal bracket (44) to prevent further pivotal movement so the seat back is then held in its upright position.
- The vehicle seat back recliner (24) as in claim 1 wherein the stationary bracket (34) includes a pair of spaced bracket portions (38) between which the pivotal bracket (44), the locking pawl (52), the control cam (54) and the catch are (56) mounted.
- A vehicle seat back recliner as in claim 2 wherein the locking pawl (52), the control cam (54) and the catch (56) are pivotally mounted between the spaced bracket portions (38) of the stationary bracket (34).
- The vehicle seat back recliner as in claim 1 wherein the pivotal bracket (44) includes a plurality of teeth (78), the locking pawl (52) including a plurality of locking teeth (80) that are engaged with the teeth (78) of the pivotal bracket (44) at different locations in the locked position to angularly position the pivotal bracket (44), and a pivotal connection (58) that pivotally supports the locking pawl (52) on the stationary bracket (34) for pivotal movement between its locked and unlocked positions.
- The vehicle seat back recliner (24) as in claim 4 wherein the locking pawl (52) includes a blocking portion (52) and a release arm (84), a pivotal connection (60) that pivotally supports the control cam (54) on the stationary bracket (34) for movement between its blocking and released positions, and a release connection (86) for selectively pivoting the control cam (54) to its released position against the bias of the first spring (64) into engagement with the release arm (84) of the locking pawl (52) to move the locking pawl (52) from its locked position to its unlocked position.
- The vehicle seat back recliner (24) as in claim 5 wherein the locking pawl (52) also includes at least one latching tooth (96), a pivotal connection (62) that pivotally mounts the catch (56) on the stationary bracket (34) for movement between its latched and released positions, the catch (56) including a latch arm (98) having a latching tooth (100) for engaging the latching tooth (96) of the locking pawl (52) in the latched position of the catch (56) to hold the locking pawl (52) in the unlocked position, the catch (56) including a biasing arm (102) that extends from the pivotal connection (62) of the catch (56) in the opposite direction as the latch arm (98), the second spring (72) engaging the biasing arm (102) of the catch (56) to pivotally bias the catch (56) toward its latched position, and the pivotal bracket (44) upon pivoting to the upright seat back position engaging the latch arm (98) of the catch to pivot the catch (56) so its latching tooth (100) disengages the latching tooth (96) of the locking pawl (52) to permit the control cam (54) to pivot under the impetus of the first spring (64) to the blocking position and thereby hold the locking pawl (52) in its locked position.
- The vehicle seat back recliner as in claim 6 wherein the locking pawl (52) includes a pair of latching teeth (96).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US396882 | 2003-03-25 | ||
US10/396,882 US6860560B2 (en) | 2003-03-25 | 2003-03-25 | Seat back recliner for vehicles |
PCT/US2004/005416 WO2004094179A2 (en) | 2003-03-25 | 2004-02-24 | Seat back recliner for vehicles |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1606137A2 EP1606137A2 (en) | 2005-12-21 |
EP1606137A4 EP1606137A4 (en) | 2006-05-31 |
EP1606137B1 true EP1606137B1 (en) | 2008-05-14 |
Family
ID=32988880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04714141A Expired - Lifetime EP1606137B1 (en) | 2003-03-25 | 2004-02-24 | Seat back recliner for vehicles |
Country Status (11)
Country | Link |
---|---|
US (1) | US6860560B2 (en) |
EP (1) | EP1606137B1 (en) |
KR (1) | KR100749798B1 (en) |
CN (1) | CN1761590A (en) |
AT (1) | ATE395210T1 (en) |
CA (1) | CA2518232C (en) |
DE (1) | DE602004013745D1 (en) |
ES (1) | ES2305733T3 (en) |
MX (1) | MXPA05010080A (en) |
PT (1) | PT1606137E (en) |
WO (1) | WO2004094179A2 (en) |
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DE102004041449B3 (en) * | 2004-08-27 | 2006-03-09 | Keiper Gmbh & Co.Kg | Fitting for a vehicle seat, in particular for a motor vehicle seat |
FR2876560B1 (en) * | 2004-10-19 | 2007-01-12 | Antolin Grupo Ing Sa | ARTICULATION DEVICE FOR A SEAT |
US7000990B1 (en) | 2005-03-22 | 2006-02-21 | Porter Group Llc | Recliner for vehicle foldable seat |
FR2883523B1 (en) * | 2005-03-24 | 2007-06-15 | Faurecia Sieges Automobile | MECHANISM FOR ADJUSTING THE INCLINATION OF A SEAT OF A MOTOR VEHICLE |
JP5033796B2 (en) * | 2005-06-27 | 2012-09-26 | ジョンソン・コントロールズ・ゲー・エム・ベー・ハー | Lock / release mechanism with safety device to prevent automatic opening |
US7309095B2 (en) * | 2005-09-06 | 2007-12-18 | Lear Corporation | Seat assembly with a release system |
US7367604B2 (en) * | 2005-12-21 | 2008-05-06 | Porter Group, Llc | Front latch assembly for vehicle seat cushion |
US20080051765A1 (en) * | 2006-08-23 | 2008-02-28 | Medtronic Minimed, Inc. | Systems and methods allowing for reservoir filling and infusion medium delivery |
KR100778590B1 (en) * | 2006-11-07 | 2007-11-22 | 현대자동차주식회사 | Recliner structure of rear seat automobile |
DE102007006603A1 (en) * | 2007-02-06 | 2008-08-07 | Keiper Gmbh & Co.Kg | Locking device for a vehicle seat |
DE102008024020A1 (en) * | 2008-05-16 | 2009-11-19 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Lock fitting for a vehicle seat |
KR101281704B1 (en) * | 2008-10-23 | 2013-07-03 | 존슨 컨트롤스 게엠베하 | Locking device, especially for an adjustment fitting and especially for a vehicle seat, and vehicle seat |
DE102008059355B4 (en) * | 2008-11-25 | 2014-07-10 | Keiper Gmbh & Co. Kg | Fitting system for a vehicle seat and vehicle seat with such a fitting system |
US8840179B2 (en) * | 2009-06-19 | 2014-09-23 | Lear Corporation | Hinge assembly for a vehicle seat assembly |
JP4785011B2 (en) * | 2009-08-21 | 2011-10-05 | トヨタ紡織株式会社 | Vehicle seat |
JP5786026B2 (en) * | 2010-08-10 | 2015-09-30 | ジョンソン・コントロールズ・ゲー・エム・ベー・ハー | Vehicle seat with adjusting device |
US8851548B2 (en) * | 2011-02-10 | 2014-10-07 | Bae Industries, Inc. | Floor latch mounted to a seat bottom and compensating for vehicle striker height variation |
DE102014111923B4 (en) * | 2014-08-20 | 2017-03-30 | Volkswagen Aktiengesellschaft | Armrest with crash protection |
US9908442B2 (en) * | 2015-12-14 | 2018-03-06 | Ford Global Technologies, Llc | Net build process for seating subassembly |
CN105667354B (en) * | 2016-02-25 | 2017-10-27 | 延锋安道拓座椅有限公司 | A kind of seat easily enters automatic unlocking mechanism |
US10259365B2 (en) * | 2016-07-20 | 2019-04-16 | Ford Global Technologies, Llc | Articulating locking mechanism for a seatback |
US20180118060A1 (en) * | 2016-10-28 | 2018-05-03 | Lear Corporation | Incrementally adjustable seat assembly |
JP6809161B2 (en) * | 2016-11-21 | 2021-01-06 | トヨタ紡織株式会社 | Vehicle seat |
US10300810B1 (en) | 2017-12-21 | 2019-05-28 | Ford Global Technologies, Llc | Seat flip up cushion latch |
US10549671B1 (en) * | 2018-09-26 | 2020-02-04 | Faurecia Automotive Seating, Llc | Seat locking system |
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-
2003
- 2003-03-25 US US10/396,882 patent/US6860560B2/en not_active Expired - Fee Related
-
2004
- 2004-02-24 CN CNA2004800077436A patent/CN1761590A/en active Pending
- 2004-02-24 MX MXPA05010080A patent/MXPA05010080A/en active IP Right Grant
- 2004-02-24 KR KR1020057016930A patent/KR100749798B1/en not_active IP Right Cessation
- 2004-02-24 AT AT04714141T patent/ATE395210T1/en not_active IP Right Cessation
- 2004-02-24 EP EP04714141A patent/EP1606137B1/en not_active Expired - Lifetime
- 2004-02-24 WO PCT/US2004/005416 patent/WO2004094179A2/en active Search and Examination
- 2004-02-24 DE DE602004013745T patent/DE602004013745D1/en not_active Expired - Fee Related
- 2004-02-24 ES ES04714141T patent/ES2305733T3/en not_active Expired - Lifetime
- 2004-02-24 PT PT04714141T patent/PT1606137E/en unknown
- 2004-02-24 CA CA002518232A patent/CA2518232C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6860560B2 (en) | 2005-03-01 |
EP1606137A2 (en) | 2005-12-21 |
KR20050116816A (en) | 2005-12-13 |
WO2004094179A3 (en) | 2005-06-30 |
ES2305733T3 (en) | 2008-11-01 |
US20040189072A1 (en) | 2004-09-30 |
KR100749798B1 (en) | 2007-08-16 |
CA2518232A1 (en) | 2004-11-04 |
EP1606137A4 (en) | 2006-05-31 |
PT1606137E (en) | 2008-08-21 |
CA2518232C (en) | 2008-02-19 |
ATE395210T1 (en) | 2008-05-15 |
WO2004094179A2 (en) | 2004-11-04 |
CN1761590A (en) | 2006-04-19 |
MXPA05010080A (en) | 2006-07-06 |
DE602004013745D1 (en) | 2008-06-26 |
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